Alation Data Catalog

Alation data catalog

Alation's catalog harvests metadata, ranks assets by usage, and adds a glossary, certification and data products, with semantic models synced to Snowflake and Databricks.

Compare: data catalog tools

• Data Catalog: Data catalog built by metadata extraction and query log ingestion from 120+ connectors, refined by Lexicon ML suggestions and steward curation, with search ranked by usage and trust flags on catalog pages (docs).

• Automated Metadata Harvesting: Open Connector Framework (OCF) with data source, BI, file system, and ELT connectors that extract schemas, tables, columns, and query logs; an SDK lets teams build their own connectors (docs).

• Search & Discovery: ML-powered search interprets natural language queries and surfaces popular assets; faceted filtering by owner, type, tag, and trust flag status (website).

• AI-Powered Search: ALLIE AI interprets natural language queries and ranks relevant assets — users find data without technical jargon or exact keyword knowledge (website).

• Usage & Popularity Statistics: Query frequency, unique user counts, and last-accessed timestamps per asset surface popularity rankings and help identify authoritative datasets (docs).

• Custom Fields & Templates: Custom fields can be added to any catalog object type; rich forms and field inheritance enable domain-specific metadata schemas (docs).

• Asset Certification: Trust flags (Endorsement, Warning/Important Info, Deprecation) mark objects as trusted or not; editing can be restricted with field-level permissions (docs).

• Business Glossary: Dedicated Business Glossary with term creation, owner/steward assignment, asset linking, and workflow-based certification, plus linkable related terms with relationship labels (docs).

• Catalog Usage Analytics: Asset-level usage statistics confirmed; catalog-wide governance program adoption dashboards were not explicitly confirmed (website).

• Metadata Propagation: Classification labels and policies exist but automatic cascading propagation of metadata from parent to child assets was not explicitly confirmed (website).

Alation data lineage

Alation shows table, column and end-to-end lineage with impact analysis, plus lineage from AI assets to their data.

Compare: data lineage tools

• Data Lineage: Dedicated Data Lineage product with end-to-end, column-level, and OpenLineage support across databases, BI tools, and ETL platforms (website).

• Table-Level Lineage: Table-to-table dependency mapping across connected data sources including warehouses, ETL tools, and BI platforms (website).

• Column-Level Lineage: Column-level lineage depends on the source connector (some need a feature flag) and is generated from custom SQL in Tableau and Power BI; temporary tables default to table level (docs).

• End-to-End Lineage: Lineage visualization maps data from source systems through transformations to BI dashboards across the full data stack (website).

• Impact Analysis: Impact analysis identifies downstream assets affected by upstream changes — integrated with lineage diagrams to assess blast radius before making changes (website).

• OpenLineage Support: Any system emitting OpenLineage-compliant events over HTTPS can push lineage directly into Alation — including Airflow, Dagster, Spark, and Prefect (docs).

Alation data stewardship

Compare: data stewardship tools

• Data Stewardship: Data Governance App adds a Stewardship Workbench for bulk curation, stewardship dashboards and reports such as Data Objects Without Stewards (docs).

• Critical Data Elements: CDE Management is a dedicated section in Governance & Stewardship docs — registers and monitors critical fields with heightened governance (docs).

• Review & Approval Workflows: Workflow Center routes suggested changes to built-in and custom fields to designated reviewers, who approve or reject each change from their Tasks inbox, with history kept per workflow (docs).

• Metadata Automation: Policy Center with governance Playbooks — trigger-based rules that apply tags, notify owners, and automate curation tasks at scale (website).

• Governance Campaigns: Not confirmed as a bulk campaign feature distinct from individual stewardship tasks (docs).

• Governance Scorecards: Governance maturity scoring or questionnaire-driven scorecards were not found in product pages reviewed (website).

Alation data classification

Compare: data classification tools

• Sensitive Data Discovery: Automated classification using ML scans connected data sources to detect and tag PII, PHI, and sensitive data — reducing manual labeling effort (website).

• Data Policy: Policy Center enables defining and enforcing data usage and access policies across catalog assets with automated compliance checks (website).

• Native Policy Enforcement: Masking policies defined in Alation's Policy Center sync back to Snowflake, so they are enforced in the warehouse (Snowflake only) (docs).

• Data Masking: Dynamic masking is confirmed — sensitive field values are masked based on user roles and classification labels at query time (website).

Alation AI features

Alation's AI assistant answers questions about data, and AIOS adds agent building and evaluation. Four of the six products launched in September 2026 are in early access.

• AI Features: ALLIE AI for natural language search and auto-generated descriptions, plus AI agents (Documentation, Data Quality, Data Products Builder) for agentic enrichment (website).

• AI Chat Assistant: ALLIE AI + Chat with Your Data — natural language interface for catalog Q&A and multi-step reasoning across assets (website).

• AI Documentation Generation: ALLIE AI auto-generates metadata descriptions for tables and columns — accelerating catalog enrichment at scale (website).

• Agentic Metadata Enrichment: Multiple AI agents — Documentation Agent, Data Quality Agent, Data Products Builder Agent — autonomously enrich, classify, and curate metadata at scale (website).

Alation data compliance

• Data Compliance: Audit trails, GDPR/CCPA compliance tooling, TrustFlag linkage to regulatory policies, and privacy risk management confirmed (website).

• Audit Trail: Immutable activity logs track metadata changes, certification decisions, and governance actions — used for regulatory audits (website).

• Compliance Reporting: Compliance documentation and risk management are confirmed, but dedicated exportable compliance reporting dashboards were not explicitly confirmed (website).

• Regulatory Framework Mapping: GDPR and CCPA compliance solutions exist, but explicit asset-to-framework mapping (HIPAA, SOX articles) was not confirmed (website).

• Data Activity Monitoring: Alation audits catalog actions, but real-time monitoring of source-system data access (DAM) was not confirmed (website).

• ROPA: Business metadata can be linked to GDPR policies via TrustFlags, but a dedicated GDPR Article 30 processing register was not explicitly confirmed (website).

• Data Retention Policies: Not confirmed in product pages reviewed (website).

• Data Subject Rights: GDPR support is confirmed, but explicit DSAR automation (right-to-be-forgotten workflows) was not confirmed (website).

Alation collaboration

• Collaboration: Inline discussions on catalog assets, Jira/ServiceNow ticketing, and Slack/Teams notifications confirmed (website).

• Alert Notifications: Alation Anywhere integrates with Slack, Microsoft Teams, and Tableau — surfacing catalog alerts where teams work (docs).

• Discussions & Annotations: Conversations and inline Q&A anchored to tables, columns, and glossary terms — creating a searchable knowledge layer on assets (docs).

• Ticketing Integrations: Jira and ServiceNow integrations route governance tasks and access requests to external issue-tracking systems (website).

Alation data marketplace

Compare: data marketplace tools

• Data Marketplace: Data Products Marketplace where admins list certified data products defined in YAML; people browse, search, rate, and chat with data products, and AI agents can discover them too (docs).

• Self-Service Access Requests: A Request Access button on the data product page shows the owner's access instructions, configured as delivery systems in the data product YAML; Get Data copies the connection string (docs).

• Data Products: Data products are defined in a YAML file (data included, access, usage, restrictions such as licensing) and published to the Marketplace, with a public Data Products API (docs).

• Data Mesh Support: Not confirmed as a first-class data mesh deployment model (docs).

• Subscription Management: Data product change notifications and subscriptions were not confirmed in product pages reviewed (website).

Alation data quality

• Data Quality: Alation Data Quality (ADQ) provides data monitoring, validation, and quality scoring with an Open Data Quality Framework for integrating external DQ tools (docs).

• SQL Table Tests: ADQ supports validation rules and quality checks at the table and column level including custom SQL-based assertions (docs).

• Data Health Scores: ADQ aggregates quality signals into asset-level health scores visible in the catalog — giving consumers a quick trust signal per dataset (docs).

• Anomaly Detection: Anomaly metrics learn baselines over time, with schema drift detection (release notes, Jul–Sep 2026) (release notes).

• Data Profiling: ADQ includes profiling — column statistics, null rates, cardinality, and distribution analysis — as part of quality monitoring (docs).

• Data Contracts: Data products have a Data Contract tab and wizard to define and publish contracts (release notes, Mar–Apr 2026) (release notes).

Alation AI governance

Alation's AI Governance (May 2026) inventories models and agents across six AI platforms, with EU AI Act, NIST AI RMF and ISO 42001 frameworks.

• AI Asset Inventory: AI Governance inventories AI models and agents across platforms in one registry (website).

• AI Lineage: AI assets link to their data dependencies, and agent lineage tracing went GA on 2026-09-17 (press).

• AI Regulatory Compliance: Built-in EU AI Act, NIST AI RMF and ISO 42001 frameworks with evidence-gated approvals (website).

• AI Agent Access Governance: The Alation AI Agent SDK provides governance enforcement APIs alongside metadata access and orchestration; Agent Studio serves governed context to agents across 120+ sources via MCP and REST, with AIOS carrying lineage and access information. Evidence is product-page level rather than docs (website).

• AI Governance: Alation has AI catalog features (ALLIE, AI agents) but no dedicated product for governing the organization's own AI models (website).

• AI Model Health Score: No AI model trust or health scoring confirmed (website).

Alation workflows

• Workflows: API, MCP server, Python SDK, dbt integration, OpenLineage, and Alation Anywhere all confirmed (docs).

• REST / GraphQL API: REST API for programmatic read/write of catalog metadata — documented in the Administration section (docs).

• MCP Server: alation-ai-agent-mcp is an open-source MCP server on GitHub that exposes Alation catalog metadata to AI agents and LLM tools (docs).

• dbt Integration: dbt Open Connector Framework (OCF) connector imports dbt models, tests, and column-level lineage into the Alation catalog (docs).

• Python SDK: alation-ai-agent-sdk is a pip-installable Python SDK for building integrations on top of the Alation AI agent framework (docs).

• Browser Extension: Alation Anywhere includes a Chrome extension that surfaces catalog metadata within Tableau, Slack, and Teams without leaving the browser (docs).

• Webhooks: Outbound webhook support was not confirmed in documentation reviewed (docs).

Alation data context layer

• Semantic Models: Semantic Model Mastering defines semantic models in Alation and syncs them to Snowflake semantic views and Databricks metric views (docs).

• Knowledge Graph: Alation uses an underlying metadata graph for lineage and relationships, but an explicit property graph API (Knowledge Graph) was not confirmed (website).